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Влияние хряков мясных пород канадской селекции на откормочные и мясосальные качества помесного молодняка
2009
Fedorenkova, L.A. | Batkovskaya, T.V. | Yanovich, E.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Usage of boars of meat breeds Yorkshire, Duroc and Landrace of Canadian selection for crossing them with cross and pure breeds of sows promotes increase of fattening and meat-fat productivity of the obtained hybrids. The best parameters of feeding efficiency the hybrid young growth of combinations (BMхL)хL and (BMхL)хD at which the age of achievement of alive weight of 100 kg and a daily average gain has made 177,2 day (P less than 0,001) and 803 g (P less than 0,001), 179,5 day (P less than 0,001) and 801 g (P less than 0,001), differed at expenses of a forage of 3,38-3,40 fodder units accordingly
Afficher plus [+] Moins [-]Диагностика и лечение аэрозолями вирусных респираторных инфекций овец
2009
Murzaliev, I.Dzh., Kyrgyz Agrarian University, Bishkek (Kyrgyzstan) | Prudnikov, V.S., Vitebsk State Academy of Veterinary Medicine (Belarus)
Results of serological examinations of blood serum of sheep on revelation of virus respiratory infections (parainfluenza-3, adenovirus and respiratory syncytial) realized in the conditions of the Kyrgyz Republic were presented. Research results showed that in farm and peasant farm holdings of all studied districts of the Kyrgyz Republic of three types of pneumo viral infections simultaneously give high levels of antibody titers in relation to parainfluenza-3 – 1:128, adenovirus – 1:32, respiratory syncytial infection – 1:16. In some districts sheep population was diseased only by parainfluenzal infection in relation with titer of specific antibodies 1:256
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